This is a daring move from the England coach whose public persona suggests conservatism. This selection kicked that theory into touch.

While the backs have been sliced and diced there is only one change to the starting pack. Tom Wood replaces James Haskell on the blindside flank, with the abrasive and experienced talents of hooker Dylan Hartley, lock Courtney Lawes and No8 Billy Vunipola left on the bench.

England saw minimal risk using Tuilagi in a position he had not held since age-group rugby. He would come under some high ball heat but the backfield was usually covered by the fullback, No8 and five-eighths.

The balance of the side had been boosted with Billy Twelvetrees and Luther Burrell in midfield, working off Danny Care and Owen Farrell.

"This is something we have wanted to do for a while," Lancaster said. "The expectations are on our backline as a whole now."

England had a backline blend of footballers who could make good decisions, strike runners with power and pace in a luxury they had not been able to compile for some time.

"It is one of the options I wanted to have a look at going into a World Cup," Lancaster added. "When you go through a World Cup, you have seven games in seven weeks you need that flexibility within your team."